Closure for containers



July 9, 1935., A. RElTER CLOSURE FOR CONTAINERS Filed May 15, 1953 m g E W M Em a. 0 r WE T [F 0 av. AB

Patented July 9, 1935 UNITED STATES 2,007,692 CLOSURE FOR CONTAINERS Adolf Reiter, Vienna, Austria Application May 13, 1933, Serial No; 670,867 In Austria May 14, 1932 5 Claims. 215-49) This invention relates to improvements in rotary closures, more particularly for bottleor tube-like containers, of the type employing a closure member which is disposed in the neck portion of the container, and which is rotatable about the axis of the said neck. The invention consists essentially in the arrangement that in one of these two portions of the closure, that is to say closure member proper and container neck, there is provided an axially disposed and uninterrupted outlet for the contents of the container, while the other of these portions comprises a blocking element which engages in the said outlet, but which is interrupted at a certain point or at certain points.

The invention is illustrated in several examples of forms of construction embodying the invention in the accompanying drawing, in which:

Figs. 1 and 2 show one form of the improved closure in the open (dispensing) position and in the position of closure, respectively.

Figs. 3 and 4 are sections taken on the lines IIIIII, and IV-IV of Figs. 1 and 2, respectively.

Figs. 5 and 6 show modifications.

Fig. 7 is a section taken on the line VII-VII of Fig. 5.

Fig. 8 is a section taken on the line VIII-VIII of Fig. 6.

Fig. 9 shows a modification of the forms of construction shown in Figs. 5 and 6.

In the form of construction shown in Figs. 1 to 4 the neck portion a of the container is provided with internal screw threading adapted to be engaged by the corresponding external threading on the closure member proper 0. At one point on the circumference of both these parts the threading is cut away, so that these cut away portions, when registering with each other, constitute a passage d which leads from the interior of the container to the outside. This passage can be interrupted by the turning of the closure member until its screw threading blocks this passage.

In the form of construction shown in Figs. 5 and 7 there is channeled out of the inside of the neck of the container a communication groove 6 which is traversed at right angles by a peripheral groove or channel 1 likewise provided on the inside of the neck of the container. The closure member proper g is provided with a beading it which is adapted to engage in the channel 1, and which is interrupted at one point. It will be clear that when the closure member 0 is set in such a position that the gap in the beading h registers with the communication groove e, the way becomes clear through this latter passage for 'structio-n already shown and described, but more rupted at a point in its circumference, at least r matter to pass from the interior of the container to the outside, while in every other position of the closure member this passage is blocked.

Ihe form of construction shown in Figs. 6 and 8 differs from the last-described merely by the fact 5 that the communication passage e, and the annular passage 1' at right angles thereto, are provided in the closure member, while the engaging, intercepting, and interrupted beading h is provided on the neck a. 10

The invention also provides for the use of a plurality of distributed passages for the escape of the contents of the container, these passages being, if desired, of diiierent'cross-sections. If this arrangement be adopted in the case of bottles one of the said passages can serve for the admission of air, so that there is no necessity for the provision of a special air inlet.

As a further development of the forms of con- 20 particularly in connection with the forms shown in Figs. 5 and 6, there is provided, in addition to the beading which effects the closure and disclosing of the communication passage, slightly pitched auxiliary threading i (see Fig. 9) which enables the beading to be firmly pressed against the sides of the transverse annular channel, thus ensuring an effective seal.

I claim:

1. In a container, two-part co-acting obturating means comprising a socket member and a rotary fitted plug member, permanently interengaging peripheral closure elements associated with the said obturating means and comprising a raised element and a depressed element, the said raised closure element being locally interrupted at a point in its circumference, and the said depressed closure element intersected by an axially disposed groove extending over the entire length of the surface of contact between the two parts of the said obturating means and constituting an open-ended through outlet passage of a depth not exceeding that of the said depressed closure element at the point of intersection therewith.

2. In a container, a neck portion on the said container, a fitted rotary stopper in the said neck, at least one complete turn of raised screw threading on the inside of the said neck interone turn of interengaging depressed threading on the outside of the said stopper, and an axially disposed groove in the said stopper extending over the entire length of the surface of contact between the said stopper and neck and constituting an open-ended through outlet passage of a depth not exceeding that of the said depressed screw threading at the point of intersection therewith.

3. In a container, a neck portion on the said container, a fitted rotary stopper in the said neck, a peripheral raised beading on the said stopper interrupted at one point in its circumference, an interengaging peripheral channel in the said neck, and an axially disposed groove in the said neck extending over the entire length of the surface of contact between said stopper and neck and constituting an open-ended through outlet passage of a depth not exceeding that of the said channel at the point of intersection therewith.

4. In a container, a neck portion on the said container, a fitted rotary stopper in the said neck, a peripheral raised beading on the inside surface of the said neck interrupted at one point in its circumference, an interengaging peripheral channel in the said stopper, and an axially disposed groove in the said stopper extending over the entire length of the surface of contact between said stopper and neck and constituting an open-ended through outlet passage of a depth not exceeding that of the said channel at the point of intersection therewith.

5. In a container, two-part co-acting obturating means comprising a socket member and a rotary fitted plug member, permanently interengaging peripheral closure elements associated with the said obturating means and comprising a raised element and a depressed element, and screw threading of low pitch on the extreme outer portion of the two parts of the said obturating means for the purpose of forcing the said closure elements into firm contact with each other, the said raised closure element being 10- cally interrupted at a point in its circumference, and the said depressed closure element intersected by an axially disposed groove extending over the entire length of the surface ofcontact between the two parts of the said obturating means and constituting an open-ended through outlet passage of a depth not exceeding that of the said depressed closure element at the point of intersection therewith.

ADOLF REITER. 

